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Instruction Book
Page 59
Effective: May 2006
SECTION 5: FIXED CIRCUIT BREAKER
5-1 GENERAL
Section 3 discussed topics and features common to all
Magnum circuit breakers, no matter what the mounting
configuration or type. In this section, features unique to
the fixed configuration (MDS/MDSX only) not covered
elsewhere are covered. Drawings and dimensions
associated with all fixed circuit breakers and any appro-
priate primary bus connections can be found in a sepa-
rate document entitled Engineering Data
TD01301004E. The installation of a fixed circuit breaker
was discussed in Section 2. If necessary, review that
information, since it will not be repeated here.
!
WARNING
FAILURE TO COMPLY WITH INSTALLATION OF THE
FIXED MOUNTED MDSX ARC HOOD ASSEMBLY
COULD RESULT IN EQUIPMENT DAMAGE, BODILY
INJURY OR EVEN DEATH.
The MDSX fixed mounted breaker is shipped with a fac-
tory installed arc hood assembly. This assembly is
required to be installed on the top of the breaker prior
to the unit being placed in service.
5-2 FIXED CIRCUIT BREAKER DIMENSIONS
The standard fixed circuit breaker is supplied with hori-
zontally mounted primary connections (Figure 5-1).
Optional vertical primary adaptors are available for dif-
ferent bus configurations. Refer to Engineering Data
TD01301004E for fixed circuit breaker dimensions, verti-
cal adaptor dimensions and vertical adaptor assembly
details.
For more information visit: www.EatonElectrical.com
Horizontal
Connection
Figure 5-1 Fixed MDS/MDSX Circuit Breaker with
Available Vertical Adaptor
Optional
Vertical
Adaptor
I.B. 2C12060H08
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